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Finding the Fourth Proportional to 13,328,441.10, 19,992,661.65 and 8,704,904.40

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Solution

The fourth proportional to 13,328,441.10, 19,992,661.65 and 8,704,904.40 is: 13,057,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328,441.10 : 19,992,661.65 = 8,704,904.40 : x
  2. Step 2: Convert to fraction form
    13,328,441.10/19,992,661.65 = 8,704,904.40/x
  3. Step 3: Cross multiply
    13,328,441.10x = 19,992,661.65 × 8,704,904.40
  4. Step 4: Simplify right side
    13,328,441.10x = 174,034,208,364,796.25
  5. Step 5: Solve for x
    x = 174,034,208,364,796.25/13,328,441.10
  6. Step 6: Final answer
    x = 13,057,356.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.